Head of siphons for aerated liquids.



W. T. W. IDRIS & R. H. GRIFFITH. HEAD OF SIPHONS FOR AERATED LIQUIDS.APPLIOATION FILED JULY 20, 1911.

COLUMBIA PLANOGRAPH (10-. WASfllNaToN. D. c.

UNITED STATES PATENT OFFICE.

WILLIAM TREVENA WILLIAMS IDRIS, 0F CAMDEN TOWN, AND RICHARD HOOSONGRIFFITH, OF PALMER/S GREEN, ENGLAND, ASSIGNORS TO IDRIS & CO. LIMITED,

OF CAMDEN TOWN, ENGLAND.

HEAD OF SIPHONS FOR AE-RATED LIQUIDS.

To all whom it may concern:

Be it known that we, WILLIAM TREVENA WILLIAMS Imus, residing at 244Camden road, Camden Town, in the county of London, England, and RICHARDHoosoN GRIF- FITH, residing at 1 Derwent road, Aldermans Hill, PalmersGreen, in the county of Middlesex, England, subjects of the King ofGreat Britain, have invented new and useful Improvements in the Heads ofSiphons for Aerated Liquids, of which the following is a specification.

Many siphon heads are now provided with a valve consisting of a flexibledisk the outer edge of which is held in contact with the earthenwareblock by a ring which is forced down by the outer screw cap. It is foundthat the cap when being screwed on sometimes causes the disk to berubbed and dis: placed.

According to the present invention the cap does not bear on the ring sothat it can be screwed home without putting any pressure on the disk andother means are provided for forcing the ring down after the cap hasbeen screwed home. This is preferably effected by making the ring in onepiece with the tube which forms the guide for the plunger and providingmeans for forcing this tube down relatively to the cap. For this purposethe tube may be carried out through the top of the cap and be forceddown by a second cap screwing onto or into the top of the ordinary cap.

The accompanying drawing shows a siphon head made in accordance withthis invention.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Specification of Letters Patent.

Application filed July 20, 1911.

Patented Dec. 12, 1911.

Serial No. 639,636.

a is the earthenware block inclosed in a metal case 12 onto which screwsthe cap 0.

d is the valve disk provided With a plunger 6 with which engages thehandle or trigger f. The edge of the disk (1 is pressed down onto theblock a by a ring 9 made in one with the tube h which forms the guidefor the plunger 6 and contains the spring 2'. The tube It is forced downby a second cap 9' screwing onto the main cap 0.

In closing the siphon, the cap j is loosened or removed from the cap 0which can therefore be screwed home onto the case b without puttingpressure on the disk since the cap does not bear on the ring 9; the diskis then forced down onto the block by screwing the cap on to the cap 0.

What we claim is 1. In a siphon head the combination with a cap and adisk valve of a ring within the cap and bearing on the valve a tube inone with the ring and means for forcing the tube downward within thecap.

2. In a siphon head the combination with a cap and a disk valve of aring within the cap and bearing on the valve a tube in one with the ringand a second cap screwing on to the first and adapted to force the tubedownward within the cap.

WILLIAM TREVENA WILLIAMS IDRIS. RICHARD HOOSON GRIFFITH.

Witnesses:

WILLIAM C. FIsHER, MAUDE CROUCH.

Washington, D. G.

